Suction-producing machine.



T. w. NYGREEN,

SUCTION PRODUCING MACHINE.

. APPLICATION'FILED MAR.YI9, 1911.

Patented D c.- 18,1917.

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Wi t n'oou 2 j -J A 3SHEETS-7SHEET 2.

Patented De0. 18,1917.

T. w. NYGREEN.

SUCTION ERODUCING MACHINE. APPLICATJON FILED MAR. 19, 1917.

13 wow T. W. NYGREEN. SUCTION PRODUCING MACHINE, APPLICATION FILED mm. 19, 1911,

1,250,492. I Patented Dec. 18,1917.

3/. I asum '32 q o .94 l" X :2 25/ I 29 smut THEODORE W. NYGREEN',

' gasometer type,

water into the tank,

a citizen of the Y Bellingham,

U TE

F BELLINGHAM,

WASHINGTON, AssmNon (130 L01? BARRQN;

or BELLINGHAM, WAsn-nvsron.

SUCTION-PRODUGI'NG MAGH-INE.

Specification of Application filed March 19,

with a bell working within a tank, a dinqy'el means perablev for raising and lowering the bell.

Another object of the invention is the provision of bell-actuating means utilizing Water for forcibly raising the bell to create the suction, and means for discharging the to provide a circulation of the water therein intermittently, the

, the provision of cally reversing the flow 'of water being controlled automatically when the bell is raised and lowered.

A still further object of ,the invention is novel means for automati- Qwater controlling valves by the movement of the bell.

With the foregoing and other objects" in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter. described and claimed. it being understoodthat changes in the precise embodimentof the invention herein disclosed, can be made withvin the scope of what is claimed, without departing from the spirit .of the invention.

The invention is illustrated in the accoman in r drawin s .Wherein:- r I p a a -Figu-re 1 is a-pla-nview of the improved suction cleaning machine.

Fig. 2 is a vertical section talren on the line 2-2 of Fig. ,1. Fig. 3 is a .fragmental' vertical section taken on the line 3-3 01? Fig. l.

Fig, 4-. is an enlarged elevatien of the valve opera-ting device, portions being broken away.- 1

g The apparatus embodies a tanli' 1, which 1 may be of concrete or other suitable; ma-

ter a d Q i which can be laid in the ground. This tank holds water and a bell 2 dfsheet Zetters Batentt wager at a end of. the Vertical gii'ides 5 are sethe bell for the air inlet pipe or vertically within the tank, oi the; taskbeing open, whilethe lower nd, of thebell is open, in the form ofa gaso'me- 'ter. 'The top; of the bell is nreferablyccmcal, and'blocks 3 ofwoodor other suitable tates' to its lowerinost or' idle position. The tank 1 hasan overflow 4 for the outletof level slightly below the ripper cared to the walls of the tank for vertical movement and holding within the tank, and the bell with members 6 engaging one sn d e it c ntrall is provided.

guide 5m prevent'the bell from rotating.

. V The top of the for the inlet and means embodies top of the tank,

belli's provided with means truer ofa ir. The air" inlet an elbow 7 attached to the and into the-end of which annular flange or c'olllar 9 being; carried by thenozzjle Sand being bolted or" otherwise fa t nedrc theflend of the elbow 7. The

V of the nozzle withinth'efielbo'w is provided with an inclined valve seat 10 and flap valve 11 is hinged to' the nozzle't'o seat downwardly again-st theseatfor' preventing the escape of air from the valvefth'reugh the nozzle said valve swinging open when the air enters the valve through said noz'z'le. The hose another air conductor connected to the nozzle 8 for conducting theair into the valve, thef suction; extending from .the

bellj through the nozzle 8 when the bell is.

raised, it bein n ted that saidi); tially submerged in the water. let means embodies an elbow 911 is par The air; ut- 12' attached t0 o1"t tl'1e' bell, and preferably v larger projecting within an air outlet nozzle A flange or; collajr' 1.4 upon the elbow 12 is "bolted; or jotherwi'se fast ned to ,the en'dl of h the ozzle 13', and the end of theelbow is provided; with inclined va'l'v'e 15 within the pipe 13 against which a flap valve 16 is; seatable downwardly, said valve being hinged to the end of the elbow; The valve 1f6 swings opento permit the air to be forced through the elbow 12', but name; to prevent the air; tram; floing,int6- the bell through said elbow 12. The dii'stcollbcting bagor other air receiving: me ans is'ceiinected to the nozzle or pipe 13.

e ew e nozzle 8 extends, an

the iipper end material are placed upon the bottom of the tank for' supporting'the bell when it gravian elongated upstanding cylinder 17 centrally within the tank, and connected at its lower end to a T-fitting 18 which is preferablv embedded in the bottom of the tank.

A vertical plunger rod 19 which is movable within the cylinder 17 has its upper end secured in any suitable manner to the top of the tank. A plunger or piston 20 is movable vertically within thecylin'der 17 and has a leather packing cup 21 to prevent leakage. Said plunger isalso provided with an upstanding tapered or conical cup 22, the rim. of which bears against the cylinder 17 above the plunger, to guide said plunger for vertical movement, and to prevent the same from tilting out of place. The rod 19 is seatable in thecup 22, and the plunger is preferably disconnected from the rod 19. A water supply pipe 23 has its discharge end extending upwardly through the fitting 18 into the lower end of the cylinder 17, and a water discharge pipe 24 is connected to the fitting 18 to receive water fromthe lower end of the cylinder, the discharge pipe 24 terminating a short distance above the bottom of thetank. The tank is provided at one side with an outwardly offset portion 24 providing a recess for accommodating the vertical portions of the pipes 23 and 24 and the automatic valve operating device described hereinafter. The water supply pipe 23 projects upwardly to apoint near the top of the tank, and then extends outwardly through the wall of the tank for connection with a water main or other source of water under pressure. The flow of water through the pipe 23 is controlled by a threeway valve 25 disposed therein near the upper end are moved simultaneously. With the levers of the tank, and the discharge of water from the pipe 24 is controlled by a valve 26 connected to the discharge end thereof, the two valves being spaced vertically within the offset portion 24 of the tank.

The valve controlling device is operable for automatically reversing the valve members 27 and 28 of the respective valves 25 and 26. Thus, a lever 29 formed from a plate is secured between its ends to the valve member 27, and a lever 30 is secured between its ends to thevalve member '28, and the arms of the levers are connected by rods or links 31, whereby the levers are parallel and arranged as shown in Fig. 4, the valve 25 is opened for the inflow of water and the valve 26 is closed, and when the levers are reversed, by swinging th'em counter clockwise, as seen in said figure, the valve'25 will shut off the inflow of water and the valve 26 will be opened. A slotted lever 31 is employed for reversing the lever 29, and thereby reversing the valves. The lever 31, embodies a longitudinal bar 32 pivoted between its ends, as at 33, to the valve member 27, and

said lever also includes a rod 34 who'se inber 36 and its roller 37 downwardly.

the upper and lower ends The operation is as follows: Supposing.

the depressed pin the lever 31 upwardly,

, right hand termediate portion is parallel with the bar 32, the end portions of the rod 34 beingof hooked form, as at 35, and secured to the ends of the bar 32, thereby providing a slot betweenthe bar 32 and the bar 34. A member 36 is provided with a pulley or roller 37 rolling along the rod 34 within the slot of the lever 31, and the member 36 is connected by a coiled wire retractile spring 38 with a band 39 clamped upon the pipe 23 below the valve 25, thereby tending to pull the nemontact bolts or pins 40 and 41 are carried by the two arms of the lever 29, said pins preferably being adjustable in apertures 42, and said pins being arranged to be engaged by the two arms of the rocking lever 31. The right hand arm of the lever 31, as seen in Fig. 4, has an outstanding bolt or pin43, which may be a securing element between the respective ends of the bar 32 and rod 34,

and the pin 43 projects toward the bell inv the path of movement of outstanding tappet members 44 and 45 carried by the bell near thereof.

that the bell 2 has gravitated, so that the member 44 seats upon and depresses the pin 43, thereby moving the corresponding arm of the lever 31 other arm of said lever strikes the pin 40 and swings thelevers 29 and 30 to the position seen in Fig. 4, the valve 25 will therefore be opened while the valve 26 is closed. Water will therefore flow throughthe supply pipe 23 into the lower endrof the cylinder 17, thereby raising the plunger 20 which in bearing upwardly against the lower end of the rod 19 will forcibly raise the bell. This will create a partial vacuum within the bell, thereby suckin air into the bell from the nozzle 8, the valve 11 swinging open by suction, while the valve 16 is seated. This suc- 7 tion continues during the upward movementmember 45 reaches of the bell, and when the 43, the further upward movement of the bell will raise said pin, thereby swinging the corresponding arm of and when said lever is moved slightly past the horizontal position, with said armraised slightly above the other arm, the roller 37 will move from the end of the lever 31, as'seenin Fig. 4, to the left hand end or arm thereof, thereby completing the turning movement of the lever 31 by a quick motion. It will be noted that when the right hand arm of the lever is raised, the spring 38 will be stretched, so that when the roller 37 moves to the left hand end of the lever 31, said left hand end will be moved downwardly by a sharp movement, so that the right hand arm of the lever willstrike the pin 41a-nd kick thelever 29 counterclockwise t0 ,itsopposite position. This will open the 'val e l downwardly, whereby the v23 and 24 into the tank. The plunger 20 is therefore moved downwardly under the weight of the bell, the bell gravitating and the air within the bell through the elbow 12. The valve 16 is forced opened by the air pressure during right hand end of the gravitation of the bell, while the valve 11 will be seated by the air pressure. Then the bell reaches its lowermost position, the member 44 will strike the raised pin 48, and depress the same, thereby swinging the lever 31 clockwise, as seen in Fig. 4, and when said lever is moved slightly beyond a horizontal position, the roller 37 will move to the the lever, whereby the spring 38 will complete the movement of the lever 31 quickly, so that the left hand arm thereof strikes the pin 40 and swings the lever 29 to the position seen in Fig. 4, thereby again opening the valve 25 for the inflow of water and closing the valve 26.

Thus, the bell starts the movement of the lever 31' in both directions, and said movement is completed quickly by the influence of the spring 38, ing reversed. The lever 31' has a limited oscillatory movement relative to the lever 29, whereby the lever 31 against the tension of the spring by the bell, after which the spring serves to complete the movement of the lever 31, to move the lever 29 with it. The water is discharged from the pipe 24 into the tank, thereby providing a circulation of the Water therein, the spent water being used for supplying the tank, and the water overflowing at the top through the overflow outlet 4.

, Having thus described the invention, what 18 claimed as new 1s:

v 1. A suction producing machine embodying a water tank, a bell movable vertically therein having an air inlet and outlet, means for moving the tank vertically, an oscillatory lever for reversing said means, a second 7 oscillatory lever having a limited movement 'mentioned lever in the relative to the aforesaid lever, spring means slidably connected with the second mentioned lever and movable past the pivot thereof for completing its movement in either direction, and cooperable means carried by the bell and second mentioned lever for starting the movement of the second proper direction Goples of this patent may be obtained for five cents each, by

being expelled to assure of the valves be can be moved' lindrical member, an

when the bell is raised and lowered a certain" flow of fluid into and out- .of said means, a'

lever connected to the valve means for reversing it, a second lever pivoted between its ends, the two levers having cooperating means for limiting their oscillation relatively to one another, a member slidably engaging the second mentioned lever and movable past the pivot thereof, a spring connected to said member for completing'the movement of the second mentioned lever in either direction, and cooperable means carried by the second mentioned lever and bell and operable for starting the movement of the second mentioned when the bell is raised and lowered a certain amount. Y

'3. A suction producing machine embodying a. water tank, a bell movable vertically therein and having an air inlet and outlet, and hydraulic means for, moving the bell vertically, including a liquid inlet pipe, a valve controlling the lever in the proper direction admission of liquid through said pipe, a liquid discharge pipe,

a valve controlling the discharge of liquid through said pipe, a separate lever connected to each valve at a median point of the lever, links connecting analogous arms of the levers, and a third lever operable to throw the first mentioned levers to actuate the valves, said third lever actuated by the rise and fall of the bell. I

4. A suction producing machine embodying a water tank, a bell movable vertically therein and having an air inlet and outlet, a vertically disposed elongated cylindrical member centrally positioned within the tank, a plunger reciprocable Within the cyinverted frusto-conical cup seated on the plunger, the rim of the cup contacting. the inner walls of the cylinder, a plunger rod stepped in the cup and connected to the bell, and means foradmitting liquid to and exhausting it from the cylinder to reciprocate the plunger.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two Witnesses.

THEODORE W. NYGREEN.

addressing the Gommissionero! Patents.

Washington, D. 0.

ion in Letters Patent No. 1,250,492.

It is hereby certified that Letters Patent No. 1,250,492, granted December 18, 1917, upon the application of Theodore W. Nygreen, of Bellingham, Washington, for an improvement in Suction-Producing Machines, Were erroneously issued to Lon Barron as assignee of the entire interest in said invention, whereas said Letters Patent should have been issued to the i'nrve'ntor, said Nygreen and Lon Barron, jointly/said Barron being owner of one-half interest only, as shown by the records of assignments in this ofiice; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 12th day of Februar'yiA. 1)., 1918.

4 J. T. NEVTON,

Commissioner 0 f Patents.

[SEAL] 

